نتایج جستجو برای: 21g 6

تعداد نتایج: 956445  

6

Journal: :فصلنامه علمی پژوهشی پژوهشهای قرآنی 0
گروه پژوهشهای قرآنی

0

Journal: :International Journal of Plant and Soil Science 2023

Strawberry is a perennial fruit crop of high importance in the market. It highly recommended both as table and processed due its nutrient content. The growth period strawberry short hence doesn’t require much time for development. Aeroponic on other hand seems to provide better cultivation annual species controlled conditions meticulous way. A field experiment was conducted at Horticulture Rese...

2008
Robert A. Freitas Ralph C. Merkle

This paper presents the first theoretical quantitative systems level study of a complete suite of reaction pathways for scanning-probe based ultrahigh-vacuum diamond mechanosynthesis (DMS). A minimal toolset is proposed for positionally controlled DMS consisting of three primary tools— the (1) Hydrogen Abstraction (HAbst), (2) Hydrogen Donation (HDon), and (3) Dimer Placement (DimerP) tools—and...

2001
Carlos Sosa Bernhard Schlegel

The insertion reactions of CH,, CHF, CF2, SiH2, SiHF, and SiF2 into hydrogen molecule have been investigated by ab initio molecular orbital methods. Reactants, loose clusters, transition structures, and products were optimized at HF/3-21G and HF/6-3 1G*. For each structure, relative energies have been calculated at MP4SDQ/6-3 lG* and vibrational frequencies at HF/3-21G. A dramatic increase in t...

1995
M. Angustias Romero Juan M. Salas

This work is an attempt to address the issue of metal-metal bonding in d 10 systems. The compound [Ag(dmtp)(NO3)]2, where dmtp represents the ligand 5,7-dimethyl[1,2,4]triazolo[1,5-a]pyrimidine, has been prepared, characterized by thermal analysis and IR spectroscopy and its structure has been solved by X-ray diffraction. The compound is triclinic, space group PI, a = 5.1295(4), b = 9.6009(7), ...

2015
Yanxia Fu Yingrong Lai Junfeng Liu Xingyang Liu Zeshan You Guofen Yang

BACKGROUND In a previous analysis on the patients with ovarian cancers, we have found that clusterin is a biomarker associated with ovarian cancer in vivo and may be a prognostic factor associated with adverse outcome. Here, we explored the effect of lentivirus-mediated shRNA interference of clusterin, investigated whether clusterin was associated with adverse outcome of ovarian cancer cells in...

1999
Rui Fausto Maria João S. Ribeiro João J. Pedroso de Lima

The results of a series of ab initio (3-21G) and semiempirical (PM3) molecular orbital (MO) calculations on neutral, zwitterionic and cationic forms of dopamine [1,2-benzenediol-4(2-aminoethyl)] are reported. In particular, optimised geometries, relative stabilities, dipole moments and electron charge distributions for the relevant conformational states of the studied molecules are presented an...

Journal: :Analytical chemistry 2013
Tan-Phat Huynh Marta Sosnowska Janusz W Sobczak Chandra B Kc Vladimir N Nesterov Francis D'Souza Wlodzimierz Kutner

Thin films of conducting molecularly imprinted polymers (MIPs) were prepared for simultaneous chronoamperometry (CA) and piezoelectric microgravimetry (PM) determination of several explosive nitroaromatic compounds (NTs) including 2,4,6-trinitrophenol (TNP), 2,4,6-trinitrotoluene (TNT), 1,3,5-trinitrobenzene (TNB), and 2,4-dinitrotoluene (DNT). For that, the bis(2,2'-bithienyl)-(4-aminophenyl)m...

Journal: :Journal of computational chemistry 2004
Yun Xiang Da W. Zhang John Z. H. Zhang

We present a quantum mechanical approach to study protein-ligand binding structure with application to a Adipocyte lipid-binding protein complexed with Propanoic Acid. The present approach employs a recently develop molecular fractionation with a conjugate caps (MFCC) method to compute protein-ligand interaction energy and performs energy optimization using the quasi-Newton method. The MFCC met...

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